Pressure tank



Aug. 17 1926.

H. D. BI NKS PRESSURE TANK Original Filed June 26, 1922 2 shuts-shawl Aug. 9

. 1,596,710 H. D. BINKS PRESSURE TANK original Filed June 2 1922 {sheets-sheet 2 Patented Aug. 17, 1926.

HARRY 1). Burns, or oar:v PARK, mums.

reassess manic.

Original application 'fild June 26, 1922, Serial 571,051. Divided and this application filedMaylS 1924. Serial No. 714,524.

vide closure tightening means for the head of a container-in the form of arms carried by the head and swung down alongside the containerwhen in operative position,-provides such A arms in jointed constructions which will permit gravity to hold them disposed above the head when'inoperative, and

provides suitable stops for limiting :the movement of the various arm portions sons to prevcntthe arms from -contact1ngw1tl1 gauges, valves or other delicate pieces of apparatus mounted on the head.

So also, my invention aims to provide cover or head locking means of this general class in which each of the locking arms has a portion thereof adjustable in length. St ll furtherand also more detailed objects will appear from the following specification and from the accompanying drawings, in which drawings Fig. 1 is a plan view of the upper port1on of a container (in the form of a socalled spray tank) embodyingrmy invention.

Fig. 2 isanelevation of the corresponding portion of the same container.

Fig. 3 is a central and vertical section through the same, taken along the line 33 of Fig. 1.

Fig. 4 is a detail, partly in section of element of the locking device.

In one of itsimmediate commercial applications, my invention is particularly adapted for use in connection with palnt spray-tanks of the kind disclosed in my copending application #571,051 as filed June 26, 1922 on a spray tank,- of which-the present application is a division. Hence I am illustrating anddescribing it in such an embodiment, although I do not wish to be limited to any particular employment of the In the pictured embodiment, the cas-V mg orbody 3 of the container has a ringsame.

casting in tightly secured to itstop. This 7 To clamp the head tightlyto the 'container proper, I provide the head with cam means which are adapted to interlock-with suitable formations on the mouth ring 4 and which are adjustable so as'to compensate both for any irregularities in the shape of the parts and for effective differences in the purpose, I desirably provide the mouth ring 4. with projecting brackets12 extending radially of the casing and arranged inpairs after the manner shown in-Fig's. land 2, these pairs being preferably symmetrically disposed about theaxis of thecontainer. 'I likewise provide the head 6 with correspondingly arranged pairs of lugs l 3 which afford bearings for pivot pins lt upon which I pivota cam members adapted to connect the said'lugs with the brackets 12' and to exert atpressure tending-to force the' head downwardly towards the mouth of the container. Each of the said cammembers desirably consists of a'vlink pivoted at its upper end upon one of thepins 1d and pivoted atits lower end by a pin 15 to a lever which has a cam; portion adapted to engrao ethe clownwardly concave-d lower faces of the two brackets 12 comprisingone of the said pairs; The link itself desirably comprises two substantially counterpart endportions 16 17 connected by a stud 18 which 'isthreaded in opposite directions into the parts 16 and 17 so that the effective length of the .link can readily be varied by rotatingthis threaded-stud. The lever part of each cam member desirably comprises a fork having of arms 19 convexed attheir free ends to afiord cam surfaces,together with an outer portion 20 intheform of a handle which desirably is curved to permit'the hand of the user to be inserted between it and the a pair thickness of the packing ring 5. For this 1 casing of the container and to present a tip 21 adapted to contact with the container 3. Thus arranged, it will readily be seen from Figs. 2 and 1 that when the cam. member in its normal position, the link portion of each cam member extends downwardly between a pair of the brackets 12, so that when the handle portion is moved from a raised position to the intermediate position shown in dotted lines in Fig. 8, the forked ends 19 exert a cam action tending to force the adjacent brackets 12 towards the-pivot pins '15, thereby drawing the cover clownward towards the mouth of the container and compressingthe packing ring 5 while doing 5 13y suitably rotating the stud. .18, I can readily adjust the effectivelength of each of the'links so as to secure the desired amount of tightening 'while perinitting thecam members to be swung into 7 tips 21 of the engagement with the container after the manner shown in Fig. 2, thereby compensat-v ing for variations in the thickness or compressibility of the packing ring. I

hen the container 18 to be opened, each of the members 1s first swung upwards after the manner shown in dotted lines in Fig. 3,

thereby releasing the several forks 19 from the adjacent brackets 12, after which the links can readily be swung to a substantially raised position with the handles swung over the links and over the head of the container after the manner shown in Fig. 3. To prevent any parts of the cam members from striking againstthe devices mounted on t ie head of the appliance (such as the pressure gage 5 or the valve body 8), I desirably provide the normally upper. link member 16 with a finger 22 adapted to engage the cover 6 when the link is swung to its raised position and likewise provide the normally lower link portion 17 with a projection 28 adapted to engage the bight of the forked handle portion. This limits the swinging of the latter when the cam member is swung to the position in which the center of gravity of the cam member is nearer the axis of the tankthan the pivotpin 15, so that gravity will then hold the entire cam member in its raised position, thereby facilitating the handling and detaching of the head whenwardly open container equipped near its mouth with brackets projecting radially outward of the mouth and each having a concave lower face, a cover for the container, links respectively"adjacent to the brackets and each pivoted at one end to the cover,

andccam members respectively pivoted to the other ends of the links, each'cam member having a conveXed-portion adapted to engage the concave low-er face of an adjacent bracket, each link comprising an upper link portion pivoted to the cover, a lower link portion pivoted to one of'the cam. members, and an adjusting member interposed between the two link portions and threadedlyconn ected to both of the link portions to permit adjustment of the distance between the pivotal connections of the link to the cover and to the cam member.

2. A pressure tank comprising an upwardly open container equipped near its mouth with brackets projecting radially out-- ward of the mouth and each having a concave lower iace, a cover for the container, links respectively ad acent to the brackets and each pivoted atone ,en'dvto the cover,

and cam members respectively pivoted to the other ends of the l1nks,.-each cam member having aconvexed campo'rtion adapted toengage'the concave lower face of an adjacent bracket' and having a handle portion adapted toengage the side of the container with its freeend, and having its cam portion disposed for presenting its .imaximum diaineter to the-said concave bracketface when the tip of'the handle engages the side of the container; each link being provided with means for adjustingits length to insure. a firm interlocking of the'bracket with cam adjacent thereto when the tip ofthe handle portion associated with the said adjacent, cam engages the side of the container.

3. A pressure tank comprising an upwardly open contain-er equipped near its mouth with outwardly projecting brackets, a cover having links pivoted thereon and respectively adjacent to the brackets, and cam members pivoted respectively to the links and each adapted to engage the lower face of one of the brackets,each link comprising a-pair of'counterpart end portions adjustably connected by a threaded element, each of the said counterpart end portions having a shoulder; the shoulder on one end portion being disposedfor engaging the cover to limit the upward swinging of the link and the shoulder on the other end portion' being disposed for engaging the cam meniber'pivoted to that link so as to limit the extent to which the cam member can be swung over the link.

Signed at Chicago, Illinois, April 14,1924.

' HARRY D. BINKS, 

